ʻO ka puʻupuʻu a i ʻole ka ʻūhā waho ka papa pale o waho loa i loko o ke ʻano o ka uwea optical, i hana nui ʻia me ka mea sheath PE a me nā mea uhi PVC, a me nā mea hoʻoheheʻe ahi-retardant ʻole halogen a hoʻohana ʻia nā mea hoʻopaʻa uila uila i nā manawa kūikawā.
1. mea lole PE
ʻO ka PE ka pōkole o ka polyethylene, ʻo ia ka pūhui polymer i hana ʻia e ka polymerization o ka ethylene. Hana ʻia ka mea ʻeleʻele polyethylene sheath e ka hui like ʻana a me ka granulating polyethylene resin me ka stabilizer, carbon black, antioxidant a me ka plasticizer i kekahi ʻāpana. Hiki ke hoʻokaʻawale ʻia nā mea hana polyethylene sheath no nā sheath cable optical i ka polyethylene haʻahaʻa haʻahaʻa (LDPE), polyethylene haʻahaʻa haʻahaʻa laina (LLDPE), polyethylene medium-density (MDPE) a me ka polyethylene kiʻekiʻe (HDPE) e like me ka nui. Ma muli o ko lākou mau ʻano like ʻole a me nā ʻano molekala, loaʻa iā lākou nā waiwai like ʻole. ʻO ka polyethylene haʻahaʻa haʻahaʻa, i ʻike ʻia he polyethylene kiʻekiʻe, ua hana ʻia e ka copolymerization o ka ethylene ma ke kaomi kiʻekiʻe (ma luna o 1500 atmospheres) ma 200-300 ° C me ka oxygen ma ke ʻano he catalyst. No laila, ʻo ke kaulahao mole o ka polyethylene haʻahaʻa haʻahaʻa he mau lālā o nā lōʻihi like ʻole, me ke kiʻekiʻe o ke kaulahao lālā, ʻano hana ʻole, haʻahaʻa crystallinity, a me ka loli maikaʻi a me ka elongation. ʻO ka polyethylene kiʻekiʻe kiʻekiʻe, i ʻike ʻia he polyethylene haʻahaʻa haʻahaʻa, ua hana ʻia e ka polymerization o ka ethylene ma ke kaomi haʻahaʻa (1-5 atmospheres) a me 60-80 ° C me ka alumini a me ka titanium catalysts. Ma muli o ka hāʻawi ʻia ʻana o ke kaumaha molecular kiʻekiʻe o ka polyethylene kiʻekiʻe a me ka hoʻonohonoho hoʻonohonoho ʻana o nā molekala, loaʻa iā ia nā ʻano mechanical maikaʻi, ke kūpaʻa kemika maikaʻi a me kahi ākea ākea o ka hoʻohana. Hana ʻia ka mea hoʻoheheʻe polyethylene medium ma o ka hui ʻana i ka polyethylene kiʻekiʻe a me ka polyethylene haʻahaʻa haʻahaʻa i kahi ʻāpana kūpono, a i ʻole ma ka polymerizing ethylene monomer a propylene (a i ʻole ka monomer lua o 1-butene). No laila, ʻo ka hana o ka polyethylene medium-density ma waena o ka polyethylene kiʻekiʻe a me ka polyethylene haʻahaʻa, a loaʻa iā ia ka maʻalahi o ka polyethylene haʻahaʻa haʻahaʻa a me ke kūpaʻa maikaʻi loa a me ka ikaika tensile o ka polyethylene kiʻekiʻe. Hoʻopili ʻia ka polyethylene haʻahaʻa haʻahaʻa liʻiliʻi e ka pae kinoea haʻahaʻa haʻahaʻa a i ʻole ke ʻano hoʻonā me ka ethylene monomer a me 2-olefin. ʻO ka degere lālā o ka linear haʻahaʻa haʻahaʻa polyethylene ma waena o ka haʻahaʻa haʻahaʻa a me ke kiʻekiʻe kiʻekiʻe, no laila, loaʻa iā ia ka maikaʻi o ke koʻikoʻi kaiapuni. He hōʻailona koʻikoʻi loa ia no ka ʻike ʻana i ka maikaʻi o nā mea PE. E pili ana ia i ke ʻano o ka ʻāpana hoʻāʻo mea i hoʻopaʻa ʻia i nā māwae koʻikoʻi i ke kaiapuni o ka surfactant. ʻO nā kumu e pili ana i ka haʻihaʻi ʻana o ke koʻikoʻi mea: ke kaumaha molekala, ka puʻunaue kaumaha molecular, crystallinity, a me ka microstructure o ke kaulahao mole. ʻOi aku ka nui o ke kaumaha o ka molekala, ʻoi aku ka liʻiliʻi o ka puʻunaue ʻana i ke kaumaha, ʻoi aku ka nui o nā pilina ma waena o nā wafers, ʻoi aku ka maikaʻi o ke koʻikoʻi o ke kaiapuni i ka haki ʻana o ka mea, a ʻoi aku ka lōʻihi o ke ola lawelawe o ka mea; i ka manawa like, pili pū ka crystallization o ka mea i kēia hōʻailona. ʻO ka haʻahaʻa o ka crystallinity, ʻoi aku ka maikaʻi o ke koʻikoʻi o ke kaiapuni i ka haki ʻana o ka mea. ʻO ka ikaika tensile a me ka elongation i ka haki ʻana o nā mea PE he hōʻailona ʻē aʻe e ana i ka hana o ka mea, a hiki ke wānana i ka hopena o ka hoʻohana ʻana o ka mea. Hiki i nā mea kalapona i loko o nā mea PE ke kū'ē maikaʻi i kaʻinoʻana o nā kukui ultraviolet ma luna o ka mea, a hiki i nā antioxidants ke hoʻomaikaʻi maikaʻi i nā waiwai antioxidant o ka mea.
2. ʻO nā mea uhi PVC
ʻO ka PVC flame retardant mea loaʻa nā chlorine atoms, e ʻā ana i ka lapalapa. I ka wā e puhi ai, e hoʻoheheʻe ʻia a hoʻokuʻu i ka nui o nā kinoea HCL corrosive a me nā mea ʻawaʻawa, ka mea e hoʻopōʻino i ka lua, akā e pio iā ia iho i ka wā e haʻalele ai i ka lapalapa, no laila ke ʻano o ka hoʻolaha ʻole ʻana i ka lapalapa; i ka manawa like, ʻoi aku ka maʻalahi a me ka extensibility PVC sheath material, a ua hoʻohana nui ʻia i loko o nā kaula optical i loko.
3. Mea puʻu ahi pale ʻole halogen
Ma muli o ka hana ʻana o ka polyvinyl chloride i nā kinoea ʻawaʻawa i ka wā e ʻā ana, ua hoʻomohala nā kānaka i ka uahi haʻahaʻa, halogen-free, non-toxic, maʻemaʻe e hoʻopaʻa i ka lapalapa ahi maʻemaʻe, ʻo ia hoʻi, e hoʻohui i nā mea hoʻopaʻa ahi inorganic Al(OH)3 a me Mg(OH)2 i nā mea hana maʻamau, e hoʻokuʻu i ka wai aniani i ka wā e hālāwai ai me ke ahi a e hoʻomoʻa i ka wela nui, a laila e pale ai i ka piʻi ʻana o ka wela o ka mea a pale i ka puhi ʻana. Ma muli o ka hoʻohui ʻia ʻana o nā mea hoʻopaʻa ahi ʻole i ka halogen-free flame retardant sheath material, e piʻi aʻe ka conductivity o nā polymers. I ka manawa like, ʻokoʻa loa nā resins a me nā mea pale ahi inorganic. I ka wā o ka hana ʻana, pono ia e pale i ka hui ʻole ʻana o nā mea pale ahi ma ka ʻāina. Pono e hoʻohui ʻia nā mea pale ahi inorganic i ka nui kūpono. Inā ʻoi aku ka nui o ka māhele, e hoʻemi nui ʻia ka ikaika mechanical a me ka elongation i ka haki ʻana o ka mea. ʻO nā hōʻailona no ka loiloi ʻana i nā waiwai pale ahi o nā mea hoʻopaʻa ahi ʻole halogen ʻo ia ka helu o ka oxygen a me ka neʻe ʻana o ka uahi. ʻO ka helu oxygen ka palena iki o ka oxygen i koi ʻia no ka mea e mālama ai i ka puhi ʻana i ke kinoea hui ʻia o ka oxygen a me ka nitrogen. ʻOi aku ka nui o ka oxygen index, ʻoi aku ka maikaʻi o nā waiwai pale ahi o ka mea. Hoʻohālikelike ʻia ka ʻike ʻana o ka uahi ma ke ana ʻana i ka hoʻouna ʻana o ka kukuna kukui like e hele ana ma ka uahi i hana ʻia e ka puhi ʻana o ka mea i loko o kahi ākea a me ka lōʻihi o ke ala ʻike. ʻO ka haʻahaʻa haʻahaʻa o ka uahi, ʻoi aku ka haʻahaʻa o ka uahi a ʻoi aku ka maikaʻi o ka hana waiwai.
4. ʻO nā mea hoʻopaʻa lole pale uila
Nui aʻe a ʻoi aku ka nui o nā kelepona ʻokoʻa kākoʻo ponoʻī āpau (ADSS) e waiho ana i ka hale kiaʻi like me nā laina kiʻekiʻe ma luna o ka ʻōnaehana uila. I mea e lanakila ai i ka mana o ke kahua uila induction kiʻekiʻe ma luna o ka sheath cable, ua hoʻomohala nā kānaka a hana i kahi mea hou e pale ai i ka maʻi uila, ka mea sheath ma ka hoʻomalu pono ʻana i ka ʻike o ke kalapona ʻeleʻele, ka nui a me ka hāʻawi ʻana i nā ʻāpana kalapona ʻeleʻele. , hoʻohui i nā mea hoʻohui kūikawā e hana ai i ka mea sheath he maikaʻi loa ka hana pale uila.
Ka manawa hoʻouna: ʻAukake-26-2024